Fix libraries being installed to usr/lib64

pkg.info

@@ -1,7 +1,7 @@
 name: layer-shell-qt
 description: Qt component to allow applications to make use of the Wayland wl-layer-shell protocol
 version: 6.4.91
-revision: 1
+revision: 2
 url: https://invent.kde.org/plasma/layer-shell-qt
 license: LGPL3-or-later
 architecture: any

source.sh

@@ -5,7 +5,7 @@
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {
-  cmake -B build -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -Wno-dev
+  cmake -B build -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_BUILD_TYPE=Release -Wno-dev
   cmake --build build
 }